Introduction

Western Australian Orchids

Well I have finally decided to take the leap and record my orchid travels, discoveries and photos in a BLOG so that others may choose to join in my adventures, looking for what I feel are an amazing family of flowering plants that have so many varieties, colours, shapes and sizes that one can not help but be amazed by them. In Western Australia there are two distinct areas that native orchids are found. The South West of Western Australia and in the north starting in the Kimberley.  My BLOG will focus on the South West terrestrial orchids due to the massive size of my home state of Western Australia.

Orchidaceae is the family name in scientific speak however I will be using the common name of “Orchid” in my posts. In Western Australia the South West orchid territory ranges from  Shark Bay in the Midwest  on a diagonal line to Kalgoorlie in the Goldfields and eastwards to Eyre on the Nullarbor plain including the entire South West,  Great Southern, South Coastal and Wheatbelt regions.

In this Southern region 28 different genera and over 400 species are found with many yet to be formally named, so as you can imagine tracking down all of these will provide years of adventures for me to fill up my BLOG.

Please note I am a self-taught amateur in Orchid location, Orchid identification and Orchid photography so I would ask for your understanding if I may get it wrong, and would appreciate your feedback, notes and comments to help this little BLOG grow and develop just as my wonderful Orchids do in this great state of Western Australia.

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Cowslip Orchids (Caladenia flava subsp. flava)

Discovering White Bunny Orchids in Israelite Bay

Numerous days, Road Trip, Western Australian Orchids

10/04/2025

Well, finding an orchid was an unexpected treat on the 4th day of an exploration trip with family.
It was unexpected as the trip was a circuit from Esperance to Balladonia, then south to Point Culver and then along the south coast to Israelite Bay, then back to Esperance along Fisheries Track/Road.

Whilst travelling slowly along the track from the beach to Israelite Bay, we spy a White bunny orchid (Eriochilus dilatatus) sticking out of the undergrowth.
Unsure of the exact subspecies, as they keep changing the naming guidelines; however, the White bunny orchids are recorded as being found in Israelite Bay during April and May, so it all fits.

Late Start to Orchid Hunting: What We Found

Day Trip, Nature Reserves, Speddingup East NR, Western Australian Orchids

29/05/2025

Well, we are a bit late in our first orchid exploration this year, as it has been a hectic couple of months. Usually, we head out in late March or early April.
As our usual suspects are found north of Esperance, we head out on Dempster Road for a look.
We will mix it up, though, by visiting new locations, so our Scaddan 1 location is our first stop.

As with most early-season searches, the results are pretty average.
The first orchids found were specimens of the Banded greenhood (Pterostylis vittata), which is found growing between Perth and Israelite Bay from late-April to early September.


The only other orchid found here was the Pygmy orchid (Corunastylis fuscoviridis), which is found between Corrigin and Eucla in WA, as well as in South Australia and Victoria.
It is one of the first orchids of the season in WA, as it flowers from March through to May.


Moved onto another nearby location, Scaddan 2; however, this proved even less successful.
The sole find here was the Hare orchid (Leporella fimbriata), which is found between Shark and Israelite Bays from March to June.


We leave Dempster Road and head west along Scaddan Road, where we make another impromptu stop. Scaddan 3.
A rather overgrown sand track that required me to remove fallen branches or hold back overhanging shrubs to try our best not to scratch up the Mighty Triton too much.
OMG, this was nearly a waste of time. Only found another Banded greenhood and a very spent Pygmy orchid.
Pics for recording purposes.


Moving on to our last location of the day, which is located in the Speddingup East Nature Reserve.
Here we spend around 1 hour looking around with not much luck.
This time, only further Banded greenhoods and Hare orchids were found.
Again, pics taken for recording purposes.


Driving back along the Coolgardie-Esperance Hwy, we make a quick check of our Gibson 15 location.
Here we find our Robust snail orchids, but they are only starting to sprout, so we will need to revisit if we are to catch them flowering.
Oh well, it was not such a great day out, but we did get to enjoy the fresh air and clocked up some steps, which is always good for us.
Until next time!!

Pterostylis dilatata sprouting

Top Orchids Found West of Esperance: A Field Report; Part IV

Day Trip, Western Australian Orchids

04/09/2024

Well, this has proven to be a full-on day trip looking for orchids. The last stop for the day is an East Munglinup location, though this time it’s on Jonegatup Road.

The first orchid found is the Small mantis orchid (Caladenia attingens subsp. gracillima), which has been a common orchid at various locations today.
Flowering occurs from August to October in woodlands and shrublands between Jerramungup and Israelite Bay.


Whilst capturing a photo of the Small mantis orchid, another smaller orchid is spied. Another better example is found soon after.
The Little frog greenhood (Pterostylis occulta) is found between Northampton and Ravensthorpe from late-August to October.
Our location is some 80kms to the east of Ravensthorpe, so a slight extension to its range.


Further along, a couple of specimens of the Zebra orchid (Caladenia cairnsiana) are found.
These small orchids occur between Lancelin and Esperance from August to early-November.


It was amazing to catch 2 species of orchids growing together. The Small mantis orchid was found under the watchful eye of the Common dragon orchid (Caladenia barbarossa).
The dragon orchid is found growing between Bindoon and Esperance from September to mid-November.


Appears to be the location for Caladenia species. Next up, we find the Short-sepaled spider orchid (Caladenia brevisura).
These orchids are found between Jerramungup and Israelite Bay during August and September.


5 other species were also spotted at this location.
4 were solo specimens:
Little laughing leek orchid (Prasophyllum gracile)
Sugar orchid (Ericksonella saccharata)
Western tiny blue orchid (Cyanicula aperta)
Common spider orchid (Caladenia varians)


Lastly was the Lemon-scented sun orchid (Thelymitra antennifera), which was found in a group, though not yet fully open.


So, our day trip finally comes to an end. We now need to drive the 112 kms home, but we do so with a sense of achievement.
This final location turned up 10 different orchid species, whilst over the whole day, we discovered at least 27 orchid species and at least 1 hybrid.
What a Day !!!!!

Top Orchids Found West of Esperance: A Field Report; Part III

Day Trip, Western Australian Orchids

So we move onto our 7th location of the day which is just another random roadside stop on the boundary between Coomalbidgup and East Munglinup localities. All depends on which side of the road you are 🙂

The Western tiny blue orchid (Cyanicula aperta) is the first orchid found at this spot. These little orchids are found between Dumbleyung and Mt Ragged from August to early-October.


Next up the Purple enamel orchid (Elythranthera brunonis) is spotted dotted around this location. They can be found growing between Israelite Bay and Kalbarri from August to early-November,


An orchid that is found on both sides of the road is the Small mantis orchid (Caladenia attingens subsp. gracillima). These are found growing between Jerramungup and Israelite Bay from August to early-October.


The wispy spider orchids from the Filamentosa complex are the next found. One specimen appears to be the Cream spider orchid (Caladenia horistes) whilst a nearly finished specimen could be the Common spider orchid (Caladenia varians).
Our location is found within the recorded distribution of both species, both flower during September, plus their flowers and leaves are of similar appearance. I will leave it for you to decide if they are the same species or not.



As this area was also subject to last summer’s bushfire the next orchid found was as expected.
Red Beaks (Pyrorchis nigricans) flower from August to October between Shark and Israelite Bays.


Last orchid recorded for this location is an unfurling Dancing spider orchid (Caladenia discoidea), which are found flowering from August to early-October between Kalbarri and Israelite Bay.


Location 8 is another random stop along the road. Change of vegetation so we will see if anything new is found.
First orchid located was a donkey orchid, however based on only 1 specimen I will not attempt to ID it at this stage. Will share to iNaturalist for assistance in this regard


The following orchids have all been found previously today and recorded in this blog so I will post 2 pics each only to record they were found in this new location.
Western tiny blue orchid,
Small mantis orchid,
Red Beaks,
Cream spider orchid,
Purple enamel orchid.


Finally, a new orchid for this blog is found.
Nothing special unfortunately but something new is something new.
The Cowslip orchid (Caladenia flava subsp. flava) is widely distributed between Northampton and Israelite Bay flowering from July to early-December


Just as we were heading back to Fili I spied a tall yellow orchid.
Woohoo it is a new orchid for today !!!!!!
The Custard orchid (Thelymitra villosa) grows to 600mm in height and can have up to 20 flowers per plant.
They are found between Northampton and Israelite Bay from September to November.


What a great way to finish off this location.
So, over the 2 random roadside stops we found 10 species of orchids.
Sometimes it pays just to pull over and look.

Off to our final destination of the day.
Refer Part IV

Top Orchids Found West of Esperance: A Field Report; Part II

Day Trip, Western Australian Orchids

04/09/2024

After a wonderful morning finding 15 species of orchids over numerous locations, we pull off the road to park up and enjoy lunch, from the boot of my small Toyota Corolla (Fili).
Neds Corner Rd is the border between the locations of Coomalbidgup and East Munglinup.
So, our lunch is in East Munglinup8, being West of the road however our explorations take us to the East side as well, which technically is in Coomalbidgup.
Not too confusing I trust. 🙂

After lunch we hit the surrounding area for another orchid hunt. Very close by we find our first orchids for the afternoon.
The Zebra orchid (Caladenia cairnsiana) is found growing between Lancelin and Esperance from August to early-November.


Red beaks (Pyrorchis nigricans) are usually found flowering the season after a summer fire has burnt its habitat. This is the case with this location, and they are found in great numbers.
Occur between Shark Bay and Israelite Bay from August to October.


Another orchid previously found today is also located at both sides of the road. The Small mantis orchid (Caladenia attingens subsp. gracillima) is found between Jerramungup and Israelite Bay during the period August to early-October.


A newbie for the day was next on the list. The tiny Little laughing leek orchid (Prasophyllum gracile) occurs between Shark Bay and Eyre during the period July to November.


An orchid which we always expect to find, but on occasions we are disappointed is the Cowslip orchid (Caladenia flava subsp. flava). Today we are not disappointed. In fact, we find hundreds growing on the banks of the Young River in the unburnt vegetation, whilst earlier we found sporadic ones growing in the bushfire zone.


In a bushfire regrowth area green with weeds and white sandy soil we find a great patch of the Esperance king spider orchid (Caladenia decora). These orchids range from Bremer Bay to Cape Arid from mis-August to October.


Another newbie and a surprise for the day is the Pink candy orchid (Caladenia hirta subsp. rosea) which occurs between Kalbarri and Israelite Bay from late-June to September.


Intermixed with the Cowslips was another yellow-coloured orchid. The Lemon-scented sun orchid (Thelymitra antennifera) is found between Shark and Israelite Bays from July to October.


As would be expected orchids found earlier today will also be found at this location being only 10km or so north. So further specimens of the Purple enamel orchid (Elythranthera brunonis) are found as they occur between Kalbarri and Israelite Bay from August to early-November.


A single king type spider orchid is found which does not appear to be the Esperance king spider orchid.
Due to the lack of red colouring and the drooping petals I will name this the Heberle’s spider orchid (Caladenia heberleana). These orchids are listed as occurring between Augusta and Cape Arid during September and October.
I have posted this ID on iNaturalist and will await other opinions.


Another solitary specimen is found, this time of the Pink fairies (Caladenia latifolia) which is found between Kalbarri and Israelite Bay from August to early-December.


Upon crossing the road, the first orchid found appears to be a hybrid. The parentage was hard to decipher until we found one of the parents close by.
I have decided the parents are Caladenia attingens x barbarossa.
Posted on iNaturalist for thoughts from others.


Just past the hybrid orchid we come across one of the parents. The Common dragon orchid (Caladenia barbarossa) is found scattered at the top of the ridge above the river flat.
These orchids are found between Bindoon and Esperance from September to mid-November.


Another orchid found as two separate specimens was the Beautiful donkey orchid (Diuris pulchella) which is listed as growing between Salmon Gums and Israelite Bay from July to September. The specimens were north and south of the river.
Our location is some 50km southwest of Salmon Gums but the species is recorded at this location in the Atlas of Living Australia.


As I was taking photos of orchids found Debbie is exploring further afield and she yells out excitedly.
She has come across a vast warren of the Rabbit orchid (Leptoceras menziesii) which has flowered due to the previous summer bushfire that scorched this area.
These orchids are found growing between Northampton and Israelite Bay from September to early-November.


Close by we also found the Esperance white spider orchid (Caladenia longicauda subsp. crassa) which occurs between Bremer and Israelite Bays from August to early-October.
Some may be the related Rigid white spider orchid (Caladenia longicauda subsp. rigidula) which occurs between Ravensthorpe and Israelite Bay during a similar flowering season.
The differences between the 2 species are the size of the flower and the rigidness or pendulousness of the petals and sepals.
Let me know your thoughts.


Crossing back over the river we come across more spider orchids that appear to be further Esperance king spider orchids.
However the better find was some other species of Donkey orchid. Due to the location and date found, I will be naming these the Green Range donkey orchid (Diuris littoralis) which is recorded as occurring between Denmark and Esperance from July to early-September.


Finally made it back to Fili at around 2pm and move onto another location.
16 species found at this location.
Part III to follow… Stay tuned

Top Orchids Found West of Esperance: A Field Report; Part I

Day Trip, Lake Mortijinup NR, Nature Reserves, Western Australian Orchids

















Only a little way up the road will pull over at another random spot due to a change in vegetation cover.
First up hiding underneath a shrub a compact clump of Western tiny blue orchids is found.


An exciting find here was a small patch of the Dwarf shell orchid (Pterostylis brevichila). These orchids are found flowering between Hyden and Mount Arid.


Another new orchid for today is found, from the Caladenia genus, which is always exciting. The Short-sepaled spider orchid (Caladenia brevisura) is another easterly located orchid, as it grows between Ravensthorpe and Israelite Bay.

The next orchids found are the small Zebra orchid (Caladenia cairnsiana) and the Frog greenhood (Pterostylis sargentii) which are found from Watheroo to Esperance and Mullewa to Grass Patch respectively.


Then some further Esperance white spider orchids and Small mantis orchids are found. As usual I will post a pic of each for recording purposes.


As we proceed, we take a moment to reflect on the discovery of 15 distinct species of orchids. With additional locations yet to be explored, this promises to be a highly successful orchid hunting expedition.
As I compose these blog posts several months after the actual date, I am dividing this day into three reports. Stay tuned for Part II and III.

Exploring the Kepwari Walk Trail: Orchids and Scenic Views

Esperance, List of Orchids Found, Western Australian Orchids, Woody Lake NR







Orchids Found on the Brookton Highway Adventure

Brookton Highway NR, Lake Hurlstone NR, Nature Reserves, Road Trip, State Forest, Western Australian Orchids

31/08/2024



Orchid Exploration in Karnup: 4 Unique Species Discovered

Regional Parks, Rockingham Lakes RP, Western Australian Orchids